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The suggestible brain: posthypnotic effects on value-based decision-making.

Vera U Ludwig1, Christine Stelzel1, Harald Krutiak2

  • 1Department of Psychiatry & Psychotherapy, Division of Mind and Brain Research, Charité Universitätsmedizin Berlin, 10117 Berlin, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117 Berlin, Department of Psychology, Humboldt-Universität zu Berlin, 12489 Berlin, Berlin Center for Advanced Neuroimaging, 10119 Berlin, Fortbildungszentrum OST der Deutschen Gesellschaft für Hypnose und Hypnotherapie e.V., 10777 Berlin, and Institute of Cognitive Science, Universität Osnabrück, 49069 Osnabrück, Germany Department of Psychiatry & Psychotherapy, Division of Mind and Brain Research, Charité Universitätsmedizin Berlin, 10117 Berlin, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117 Berlin, Department of Psychology, Humboldt-Universität zu Berlin, 12489 Berlin, Berlin Center for Advanced Neuroimaging, 10119 Berlin, Fortbildungszentrum OST der Deutschen Gesellschaft für Hypnose und Hypnotherapie e.V., 10777 Berlin, and Institute of Cognitive Science, Universität Osnabrück, 49069 Osnabrück, Germany Department of Psychiatry & Psychotherapy, Division of Mind and Brain Research, Charité Universitätsmedizin Berlin, 10117 Berlin, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117 Berlin, Department of Psychology, Humboldt-Universität zu Berlin, 12489 Berlin, Berlin Center for Advanced Neuroimaging, 10119 Berlin, Fortbildungszentrum OST der Deutschen Gesellschaft für Hypnose und Hypnotherapie e.V., 10777 Berlin, and Institute of Cognitive Science, Universität Osnabrück, 49069 Osnabrück, Germany Department of Psychiatry & Psychotherapy, Division of Mind and Brain Research, Charité Universitätsmedizin Berlin, 10117 Berlin, Berlin School of Mind and Brain, Humboldt-Universität zu Berlin, 10117 Berlin, Department of Psychology, Humboldt-Universität zu Berlin, 12489 Berlin, Berlin Center for Advanced Neuroimaging, 10119 Berlin, Fortbildungszentrum OST der Deutschen Gesellschaft für Hypnose und Hypnother

Social Cognitive and Affective Neuroscience
|July 27, 2013
PubMed
Summary
This summary is machine-generated.

Hypnosis and autosuggestion can reduce the appeal of unhealthy foods. Hypnosis proved more effective, altering value representation in the brain’s ventromedial prefrontal cortex.

Keywords:
hypnosisprecuneusself-controlvalue-based decision-makingventromedial prefrontal cortex

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Decision Science

Background:

  • Hypnosis is known to affect perception, motor function, and memory.
  • Previous neuroimaging studies have not explored hypnosis's impact on reward processing and decision-making.

Purpose of the Study:

  • To investigate if posthypnotic suggestions can decrease the attractiveness of unhealthy foods.
  • To compare the effectiveness of hypnosis versus autosuggestion in devaluing food.

Main Methods:

  • Functional magnetic resonance imaging (fMRI) was used to measure brain activity.
  • Participants underwent hypnosis or autosuggestion to devalue snacks.
  • Bidding behavior and self-reports were collected during fMRI scans.

Main Results:

  • Both hypnosis and autosuggestion successfully reduced snack attractiveness, reflected in bidding and self-reports.
  • fMRI revealed decreased blood oxygen-level-dependent (BOLD) signals in the ventromedial prefrontal cortex (vmPFC), a key value-representation area.
  • Hypnosis showed a stronger effect on vmPFC activity compared to autosuggestion, indicating more profound value reduction.

Conclusions:

  • Posthypnotic suggestions can effectively influence food valuation and decision-making.
  • Hypnosis is a potent tool for altering subjective value and potentially guiding healthier choices.
  • The vmPFC and precuneus play distinct roles in processing value and snack characteristics under hypnotic suggestion.